METHOD OF PROCESSING GOLD-SOLVER ALLOYS Russian patent published in 2001 - IPC

Abstract RU 2163935 C1

FIELD: refining of noble metals used in processing of gold-silver alloys. SUBSTANCE: method includes melting, granulation and treatment of alloy with nitric acids with subsequent leaching of solid gold residue in aqua regia. Novelty consists in adding to alloy before melting copper and solid residue is leached with aqua regia. The proposed method increases degree of silver recovery from gold-silver alloy with Au/Ag weight ratio of 0.5-1.45. EFFECT: higher efficiency. 2 cl, 2 tbl

Similar patents RU2163935C1

Title	Year	Author	Number
METHOD FOR PROCESSING PLACER GOLD	1996	Karpukhin A.I. Stel'Kina I.I. Rybkin S.G.	RU2112062C1
METHOD OF PROCESSING GOLD ALLOY	1998	Karpukhin A.I. Stel'Kina I.I. Medvedeva L.A. Dement'Ev V.E.	RU2151210C1
TREATMENT METHOD OF ZINC-BEARING GOLDEN-SILVER CYANIC SEDIMENTS	2007	Il'Jashevich Viktor Dmitrievich Mamonov Sergej Nikolaevich Efimov Valerij Nikolaevich Vostrikov Vladimir Aleksandrovich Glukhov Vladimir Nikolaevich Gerasimova Ljudmila Konstantinovna	RU2351667C1
METHOD OF PROCESSING ZINC PRECIPITATES	1995	Potapova A.I. Nikonova E.S. Ershov V.P. Stel'Kina I.I.	RU2087566C1
METHOD OF PROCESSING GOLD-SILVER ALLOYS TO PRODUCE GOLD	2018	Pavlova Elena Igorevna Sirotina Diana Yurevna Skidanov Vladimir Viktorovich Konovalenko Pavel Viktorovich	RU2680788C1
METHOD FOR PROCESSING CONCENTRATE OF PRECIOUS METALS	1995	Sidorenko Ju.A. Efimov V.N.	RU2094499C1
METHOD OF PROCESSING CHLORIDE SLAG CONTAINING NOBLE METALS	1998	Karpukhin A.I. Musin E.D. Dement'Ev V.E. Stel'Kina I.I. Mineev G.G.	RU2153014C1
METHOD OF GOLD-SILVER ALLOY PROCESSING	2006	Lavrov Anatolij Andreevich Sviridenko Viktor Vladimirovich Baraboshkin Valentin Evgen'Evich Sivkov Mikhail Nikolaevich	RU2332473C1
METHOD FOR PROCESSING LEAD- AND SULFIDE-CONTAINING PLACERS OF GOLD	2000	Farrakhutdinov Firdavis Jagudinovich Sukhov Vitalij Konstantinovich Kozin Leonid Fomich Korostin Anatolij Dmitrievich Tikhomirov Aleksej Nikolaevich	RU2196839C2
SILVER AFFINAGE METHOD	1995	Potapova A.I. Karpukhin A.I. Rybkin S.G. Nikonova E.S. Stel'Kina I.I.	RU2100457C1

RU 2 163 935 C1

Authors

Karpukhin A.I.

Stel'Kina I.I.

Medvedeva L.A.

Dates

2001-03-10—Published

1999-11-15—Filed